Aluminum cellular composite board manufacture method

Abstract

The present invention discloses a manufacturing method of an aluminum honeycomb composite plate. The method mainly comprises the following steps: 1. aluminum honeycomb core is treated by thermoplastic powder so as to have a powder coating on the surface; 2. the treated aluminum honeycomb core utilizes hot-melt adhesive film and aluminum alloy panel for hot-pressure composite and then is cooled to obtain the finished product. The aluminum honeycomb composite plate manufactured by the method is characterized by small stress, difficult bending and deformation, high adhesive strength, good anti-corrosion performance, convenient recovery and utilization.

Description

Technical field: [0001] The invention relates to a novel aluminum honeycomb composite panel, in particular to a manufacturing method of the aluminum honeycomb composite panel. Background technique: [0002] Aluminum honeycomb panel is a kind of sandwich structure, which is a kind of hard and light composite material composed of thin aluminum plate bonded with relatively thick lightweight aluminum honeycomb core material. Because the material has excellent properties such as high wind pressure resistance, shock absorption, sound insulation, heat preservation, flame retardancy and high specific strength, it is currently the most luxurious and widely used building curtain wall material. [0003] Generally, aluminum honeycomb panels are mainly composed of panels and core materials that are hot-pressed with adhesives. In the process of manufacturing aluminum honeycomb panels, the adhesives currently used are mainly epoxy resin, polyurethane thixotropic adhesive and hot melt adhe...

AI Technical Summary

Problems solved by technology

At the same time, the shrinkage of the adhesive film will cause greater stress and easily cause the aluminum honeycomb panel to bend and deform.

[0004] In order to improve the anti-corrosion performance of honeycomb panels, the US patent "US2004 / 0078976" discloses a method of using stainless steel panels and stainless steel honeycomb cores to reduce the problem of poor salt water resistance of aluminum honeycomb panels. And the cost is high, so it is mainly used in fields with harsh environmental conditions such as aviation and navigation

[0005] In addition, the patent No. "01130075.2" discloses an aluminum honeycomb panel produced by a composite hot-melt adhesive film. The thickness of the adhesive film is between 0.02mm and 1.0mm. The stress generated by thermal expansion and contraction of the film is greater, which is easy to cause deformation of the aluminum honeycomb panel

[0006] In order to improve the performance of honeycomb panels, Japanese patents JP-A Nos.2995362 / 1997 and 502968 / 2000 disclose a resin / moisture barrier film made of a special polymer material between the bonding panel and the honeycomb core And an adhesive barrier layer, but both the moisture barrier film and the adhesive barrier layer must be coated with adhesive, and the resin / moisture barrier film must be pre-treated, so while improving the performance of anti-corrosion and heat insulation , which also increases the cost and the weight of the honeycomb panel, and the process is more complicated